What Should an OEM Charger RFQ Include A Practical Guide for USB-C Charger Buyers
Provider of Information: Miller and Selike (Engineer)
How to Prepare a Clear Charger Request for Quotation Before Contacting a Manufacturer
When a company plans to develop or source a new USB-C charger, one of the first steps is usually to contact several manufacturers and request quotations.
At first, this sounds straightforward. The buyer sends a product picture, mentions the required wattage, asks for the unit price, and waits for suppliers to respond. But this approach often creates more questions than answers. A 65W USB-C charger, for example, can have different port configurations, output profiles, plug types, input-voltage ranges, housing dimensions and certification requirements. Two manufacturers may quote the same 65W rating while offering products that are technically and commercially quite different.
The problem is not necessarily that one supplier has a higher price. The problem may be that both suppliers are quoting against different assumptions.
For OEM and ODM charger projects, a well-prepared Request for Quotation (RFQ) helps avoid this situation. It gives the manufacturer enough information to understand the product, evaluate its engineering requirements, estimate production costs and identify potential issues before sampling begins.
This guide explains what an OEM charger RFQ should include, which technical details matter most, and how buyers can prepare a request that leads to more accurate quotations from a USB-C charger manufacturer.
Quick Answer: What Should an OEM Charger RFQ Include?
An OEM charger RFQ should define the required output power, USB port configuration, charging protocols, AC input range, plug type, target markets, mechanical design, certifications, packaging, order quantity and delivery expectations. It should also distinguish mandatory specifications from preferred features so manufacturers can quote against the same product requirements.
Start With a Clear Product Definition
Before discussing price, the buyer should explain what kind of charger is required.
Gan Fast charger manufacturer needs to know whether the project involves:
• A single-port USB-C wall charger
• A multi-port USB-C charger
• A USB-C and USB-A combination charger
• A compact GaN fast charger
• A desktop charger
• A laptop power adapter
• A customized charger with a new housing or private mold
This first description does not need to contain every technical detail. Its purpose is to establish the basic product direction. It is also useful to provide the intended application. A charger designed primarily for smartphone retail may have different priorities from one intended for laptop users, travel accessories or a multi-device charging product.
For example, a buyer may prioritize compact dimensions and a single USB-C port for a retail phone charger. A laptop-oriented product may require higher continuous output power, specific PD profiles and more detailed thermal evaluation.
These distinctions help the charger factory understand what the project is trying to achieve.
Information to include
| Item | What the buyer should specify |
| Product type | Wall charger, desktop charger, laptop charger or multi-port charger |
| Main application | Smartphone, tablet, laptop or multiple devices |
| Rated output | Required wattage, such as 30W, 45W, 65W or 100W |
| Port configuration | 1C, 2C, 1C1A, 2C1A or another arrangement |
| Product direction | Existing model customization or new product development |
| Target customer | Retail brand, distributor, e-commerce seller or enterprise buyer |
If the buyer already has a reference product, it is helpful to include clear photographs and a technical specification sheet. However, reference images cannot replace written requirements; the phone charger manufacturer’s sales representative still needs to clarify which features must be retained and which can be adjusted.
Define the USB Output Specifications, Not Just the Wattage
This is one of the most important parts of a charger RFQ. A product described simply as a 100W USB-C charger is not fully specified. The manufacturer needs to understand how that power is delivered.
For a USB-C PD charger, the RFQ should identify the required output voltage and current profiles, where known. If the buyer requires PPS or AVS support, those requirements should be stated separately rather than assumed from the wattage.
Further details include:
• USB-C Power Delivery support
• Required PD voltage and current profiles
• PPS voltage and current range
• AVS support, where applicable
• USB-A QC or other required charging protocols
• Maximum output per port
• Total output when multiple ports operate together
• Power-sharing behavior between ports
Why multi-port power allocation matters
A multi-port fast charger can advertise a total output rating, but that does not mean every port can deliver its maximum power at the same time.
A 100W 2C1A charger, for instance, may allocate power differently when one, two or three ports are being used.
The RFQ should therefore state the required power distribution rather than only the maximum total wattage.
A useful specification format is:
Define the USB Output Specifications, Not Just the Wattage
This is one of the most important parts of a charger RFQ. A product described simply as a 100W USB-C charger is not fully specified. The manufacturer needs to understand how that power is delivered.
For a USB-C PD charger, the RFQ should identify the required output voltage and current profiles, where known. If the buyer requires PPS or AVS support, those requirements should be stated separately rather than assumed from the wattage.
Further details include:
• USB-C Power Delivery support
• Required PD voltage and current profiles
• PPS voltage and current range
• AVS support, where applicable
• USB-A QC or other required charging protocols
• Maximum output per port
• Total output when multiple ports operate together
• Power-sharing behavior between ports
Why multi-port power allocation matters
A multi-port fast charger can advertise a total output rating, but that does not mean every port can deliver its maximum power at the same time.
A 100W 2C1A charger, for instance, may allocate power differently when one, two or three ports are being used.
The RFQ should therefore state the required power distribution rather than only the maximum total wattage.
A useful specification format is:
| Port condition | Required output |
| USB-C1 only | Specify maximum output |
| USB-C2 only | Specify maximum output |
| USB-A only | Specify maximum output |
| USB-C1 + USB-C2 | Specify combined power allocation |
| USB-C1 + USB-A | Specify combined power allocation |
| All ports in use | Specify total available output |
The exact combinations depend on the product design. If the buyer does not have a confirmed power-allocation table, the RFQ should identify the required device combinations and ask the manufacturer to propose a suitable configuration.
For more detail on this subject, buyers can also review Multi-Port USB-C Charger Power Allocation: How Engineers Manage Shared Output Power when comparing multi-port designs.
A clear output specification prevents a common sourcing problem: receiving a quotation for a charger that has the correct headline wattage but does not meet the actual device-charging requirements.
Specify the AC Input Range and Plug Type
Input requirements are easy to overlook when buyers focus mainly on USB output power.
However, the AC input range directly affects whether a charger is suitable for the intended sales market.
The RFQ should state whether the product needs:
• 100–240V AC universal input
• 200–240V AC input and 110–150V AC input
• Another clearly defined input range
• 50Hz, 60Hz or both
• A particular maximum input current, if required
A buyer planning to distribute products across several countries should not assume that all markets use the same mains voltage.(Select 100–240V AC universal input)
The plug configuration must also be defined. Common options include EU, UK, US, Korean and other regional plug types.
For a project involving several markets, specify whether the buyer needs:
1.One charger platform with different plug versions;
2.Separate regional models;
3.A common product configuration that can be used across the intended territories.
This decision can affect mechanical design, certification, tooling and production planning.
A professional wall charger factory should be able to review the input and plug requirements before confirming the product configuration. If the buyer is unsure about the correct specification, it is better to identify the destination countries and request engineering advice rather than leave the input range undefined.
Identify the Target Markets and Compliance Requirements
A charger intended for one market may not automatically be suitable for another. The RFQ should list the countries or regions where the product will be sold. This allows the manufacturer to identify the relevant electrical safety, EMC, energy-efficiency, labeling and environmental requirements for further evaluation.
Depending on the target market and product category, buyers also need to discuss requirements involving the following standards or certification systems:
• CE-related European requirements
• RoHS material restrictions and CB certification
• UK market requirements
• FCC requirements for applicable US products
• ETL certification, where required by the buyer or market
• KC or KCC requirements for South Korea
• ERP or other applicable energy-efficiency requirements
This is not a universal checklist in which every charger needs every certification. The specific applicable requirements depend on the target sales market, the product itself, and its configuration.
In addition, it should be clarified whether the manufacturer can provide the following:
• Existing certificates and test reports
• A new certification application
• Product testing before shipment
• Label and packaging compliance support
• Documentation for a specific importer or retailer
A buyer should not rely on a general statement that a factory has certifications. The documents must be relevant to the actual model and configuration being quoted.
Provide Mechanical and Appearance Requirements
If the buyer wants an existing model with a customized logo, the requirements may be relatively simple. If the project needs a new enclosure, plug structure or private mold, the engineering work can be considerably different.
Product dimensions
If there is a maximum size requirement, provide the preferred dimensions or the available installation space.
For compact GaN chargers, dimensions may influence internal component arrangement, thermal design and safety spacing. A manufacturer should review whether the requested size is technically realistic for the specified output power.
Housing material and finish
Specify any requirements for:
• Housing material and Flame-retardant material grade, if required
• Surface texture and Matte or glossy finish
• Color and Anti-fingerprint treatment
• Logo printing or other branding
Plug structure
Clarify whether the plug should be fixed, foldable, interchangeable or customized for a specific market.
Branding and packaging
A complete RFQ should also state whether the project needs:
• Custom logo printing and Private-label packaging
• Customized product colors
• Retail boxes and User manuals
• Barcode or SKU labels
• Customized accessories or cables
For buyers who need a new product rather than a standard model, it is useful to distinguish between a modification to an existing design and a completely new development project.
This distinction helps a charger manufacturer estimate engineering work, tooling requirements and development time more accurately.
Separate Mandatory Requirements From Preferred Features
Not every feature in an RFQ has the same level of importance.
Some requirements are essential. Others are preferences that can be adjusted if they create a significant cost or engineering challenge.
Buyers should separate them clearly.
| Requirement | Priority | Example |
| Output power | Mandatory | 65W minimum |
| USB port layout | Mandatory | 2C1A |
| Plug type | Mandatory | EU plug |
| Input range | Mandatory | 100–240V AC |
| PPS support | Mandatory or preferred | Depends on target devices |
| Housing color | Preferred | Matte black |
| Product dimensions | Target or maximum | Maximum size defined |
| Packaging | Customization option | Private-label retail box |
This simple distinction makes quotation discussions more efficient.
If every detail is marked as mandatory, the manufacturer may have little room to suggest a more practical solution. On the other hand, if critical requirements are not clearly identified, the quotation may be based on a product that does not satisfy the buyer's actual needs.
A useful RFQ should make clear which specifications cannot change and which can be discussed.
Include Quality and Reliability Expectations
A charger sample may work correctly during a short demonstration but still require further evaluation before mass production. For this reason, the RFQ should describe the buyer's quality expectations.
Depending on the product and customer requirements, relevant checks may include:
• Output voltage and current verification and USB-C PD and PPS protocol testing
• Full-load operation and Temperature-rise evaluation
• Hi-pot testing and Short-circuit protection
• Over-current and over-voltage protection
• Aging or burn-in testing and EMI and EMC verification
• Appearance and mechanical inspection etc
The RFQ does not need to prescribe every test method if the buyer does not have an engineering team. It can instead identify the required product performance and ask the manufacturer to explain its standard validation process.
However, buyers should avoid vague statements such as "high quality" or "strict testing" as the only quality requirements.
A more useful request is to ask which tests are performed, under what conditions, and whether the relevant records can be provided for the project.
For a broader supplier evaluation, see Charger Factory Audit Guide: How to Evaluate a Reliable OEM Charger Manufacturer.
Provide Order Quantity, Forecast and Delivery Expectations
Commercial information is essential for a meaningful quotation. A supplier cannot accurately estimate production cost or capacity requirements if the RFQ only says "please quote your best price."
At a minimum, buyers should provide:
• Estimated sample quantity and Initial order quantity
• Expected monthly or quarterly demand
• Annual volume forecast, if available
• Target delivery date and Destination country
• Packaging quantity or carton requirements, if known
The first order quantity and long-term forecast should be separated.
For example, a buyer may initially need a small trial order but expect higher volumes after the product enters retail distribution.
This information can influence component purchasing, production scheduling, MOQ discussions and price structure.
Clarify What the Quotation Must Include
An RFQ should not only explain what the buyer wants. It should also tell suppliers how to structure their responses. Otherwise, one manufacturer may quote a standard model, another may include customized packaging, and a third may include additional testing. Comparing their unit prices would not be meaningful.
A buyer can ask each supplier to provide:
1.Product model or proposed configuration
2.Technical specification sheet
3. Unit price at each requested quantity
4. MOQ
5. Sample cost and sample lead time
6. Tooling or development charges, if applicable
7. Packaging and accessory costs
8. Estimated mass-production lead time
9. Available certifications and test documents
10. Payment and delivery terms
11. Quotation validity period
12. Any assumptions, exclusions or deviations from the RFQ
For a customized charger, the quotation should also distinguish between recurring unit costs and one-time development costs.
These may include mold development, engineering work, customized fixtures or certification-related expenses, depending on the project.
A clear cost breakdown helps buyers understand why quotations differ instead of treating the lowest unit price as the only decision factor.
How to Compare Quotations From Different Charger Manufacturers
Once several suppliers have responded, the buyer should compare their quotations against the original RFQ. The first step is to check whether each supplier has quoted the same product configuration.
A lower quotation may be based on:
• A different input-voltage range or A lower output profile
• Component quality
• Exaggerated product specifications(e.g., labeled as 100W, but actually 50W)
• A different housing or material specification
• Different testing or certification assumptions
These differences should be identified before comparing prices.
A supplier that identifies technical gaps and explains the assumptions behind its quotation may provide more useful information than one that immediately offers the lowest price without reviewing the requirements.
For a brand owner or phone charger wholesaler, this is particularly important when the product will be reordered over time. A small difference in the original specification can become a recurring commercial issue if it is not resolved before production.
What Should a Charger Manufacturer Do After Receiving an RFQ?
Professional charger manufacturers should not treat every Request for Quotation (RFQ) merely as a request to "send a price list." The first step should be a technical and commercial assessment.
A sales representative at the charger factory will verify: Are the customer's requirements complete? Is the requested configuration feasible? Are there any conflicts between the various specifications?
• Product and Specifications — Do existing products meet the customer's needs? (This includes output power, connector configurations, protocols, input voltage ranges, and structural requirements.)
• Market and Compliance Assessment — What is the customer's target market? Does the product already possess the necessary compliance or certifications?
• Cost and Procurement — This involves Minimum Order Quantity (MOQ) requirements, driven by factors such as component-level MOQs, the Bill of Materials (BOM), tooling, and other production-related considerations.
• Production — The sales representative will also gather information regarding manufacturing lead times, testing protocols, packaging methods, order scale, and production capacity.
• Quote Preparation — A formal quote is prepared based on the confirmed configuration, with all underlying assumptions or outstanding issues clearly outlined.
For projects requiring extensive customization, the manufacturer’s sales representative will engage in technical and requirements-based discussions before providing a formal quote. This is not a stalling tactic; rather, it ensures that both the buyer and the manufacturer avoid wasting time on product configurations that are commercially or technically unfeasible.
A Practical OEM Charger RFQ Template
The following structure can be used when contacting a USB-C charger manufacturer.
A. Basic Project Information - Company name, Contact person, Target sales markets,Product application, Required product type, Existing model customization or new development;
B. Electrical Requirements - Rated output power, USB port configuration, Required USB-C PD profiles, PPS requirement, AVS requirement, if applicable, USB-A protocol requirements, Multi-port power allocation, AC input voltage and frequency, Plug type;
C. Mechanical and Appearance Requirements - Maximum product dimensions, Housing material, Product color, Surface finish, Logo customization, Plug structure, Cable or accessory requirements, Packaging requirements;
D. Compliance and Quality Requirements - Target countries, Required certification or compliance conditions, Required electrical tests, Thermal and reliability expectations, Required test reports, Labeling and manual requirements;
E. Commercial Requirements - Sample quantity, Initial order quantity, Estimated annual demand, Target price, if available, Sample deadline, Target mass-production date, Delivery destination, Required quotation breakdown;
F. Supplier Response - Please provide, Recommended model or proposed solution, Technical datasheet, Unit price by quantity, MOQ, Sample and production lead time, Tooling or development costs, Available certification documents, Any technical deviations or assumptions;
The buyer does not need to know every engineering detail before sending an RFQ. What matters is providing enough information for the manufacturer to identify the product direction and ask the right follow-up questions.
How ZONSAN Supports OEM and ODM Charger Projects
ZONSAN develops and manufactures USB wall chargers, GaN fast chargers, USB-C PD/PPS chargers, desktop chargers and multi-port charging products for OEM and ODM customers.
For a new project, the RFQ is an important starting point because it connects the buyer's commercial requirements with the manufacturer's engineering and production evaluation. A request may involve an existing charger model with customized branding, or it may require changes to the power configuration, plug type, housing, internal structure or packaging.
The more clearly these requirements are defined, the easier it is to assess feasibility, estimate development work and prepare a quotation that reflects the intended product.
As a charger manufacturer with 17 years of experience and a 6,358㎡ production facility, ZONSAN works with customers on product specifications, engineering development, sample evaluation and manufacturing preparation.
For buyers who are still comparing suppliers, it is worth reviewing the manufacturer's development capability and production process alongside the quotation itself. A low initial price is only useful when the proposed product can meet the agreed requirements and be manufactured consistently.
Final Thoughts
A good OEM charger RFQ is more than a request for unit pricing. It is the document that establishes what the buyer expects the manufacturer to develop, supply and deliver.
When output profiles, input voltage, plug type, target markets, customization, quality expectations and order quantities are clearly defined, manufacturers can prepare more accurate quotations and identify potential engineering issues earlier.
For buyers, this reduces unnecessary sample revisions and makes supplier comparisons more meaningful.
For manufacturers, it provides a clearer basis for engineering review, sourcing, production planning and cost estimation.
If you are sourcing a USB-C PD charger, GaN fast charger or customized wall charger, take the time to prepare the RFQ before requesting prices. A clearer starting specification usually leads to a more efficient development and purchasing process.
FAQ: OEM Charger RFQ
Q1: What is an RFQ in charger manufacturing?
RFQ stands for Request for Quotation. It is a document or inquiry sent by a buyer to a charger manufacturer to describe the required product specifications, quantities, customization, target markets and delivery expectations so the supplier can prepare a quotation.
Q2: What information should I include when requesting a charger quotation?
Include the required output power, USB port configuration, PD/PPS protocols, AC input range, plug type, target market, product dimensions, branding, packaging, order quantity and delivery expectations. If available, attach a reference product or technical specification.
Q3: Can I request a quotation with only a product picture?
Yes, a picture can be a useful starting reference, but it is not enough for an accurate quotation. The buyer should also identify the required wattage, ports, input range, plug type, customization and destination market.
Q4: Why do different charger manufacturers quote different prices for the same wattage?
The products not have the same specifications. Differences can include output profiles, component selection, input range, port power allocation, materials, certification scope, packaging and testing requirements. Buyers should compare equivalent configurations.
Q5: Should I specify PPS and AVS in a 100W charger RFQ?
Yes, if these protocols are required by the target devices or product positioning. Buyers should state the required voltage and current ranges where known rather than assuming that every 100W USB-C charger supports the same profiles.
Q6: Should the RFQ include the destination country?
Yes. The destination market affects input-voltage suitability, plug configuration, labeling and applicable compliance requirements. Providing the intended sales countries helps the manufacturer evaluate the correct product configuration.
Q7: What is the difference between an OEM charger RFQ and an ODM charger RFQ?
An OEM RFQ often starts with buyer-defined product requirements or an existing design that needs manufacturing or customization. An ODM RFQ may allow the manufacturer to propose a product design or platform based on the buyer's market and commercial requirements. The actual division of design responsibility should be agreed by both parties.
Q8: Should I include my target price in an RFQ?
A target price can help the manufacturer understand the commercial direction, but it should not replace technical specifications. If the target price is below the cost of the requested configuration, the manufacturer may suggest alternative components, designs or customization options for discussion.
Q9: How many charger manufacturers should I send an RFQ to?
There is no fixed number. It is more useful to select manufacturers with relevant product and engineering capabilities and send them the same specification. This makes their quotations easier to compare.
Q10: What should I check before approving a charger quotation?
Check the exact model and configuration, output profiles, input range, plug type, certification assumptions, customization scope, MOQ, sample cost, tooling charges, lead time, payment terms and quotation exclusions. Confirm that the supplier has quoted against the same requirements you submitted.
Reviewer: Luke and Jeroen Groen
Second Reviewers: Lucas and Jessica
Final Review Date: [November 10, 2026]
A useful RFQ should make clear which specifications cannot change and which can be discussed.
Include Quality and Reliability Expectations
A charger sample may work correctly during a short demonstration but still require further evaluation before mass production. For this reason, the RFQ should describe the buyer's quality expectations.
Depending on the product and customer requirements, relevant checks may include:
• Output voltage and current verification and USB-C PD and PPS protocol testing
• Full-load operation and Temperature-rise evaluation
• Hi-pot testing and Short-circuit protection
• Over-current and over-voltage protection
• Aging or burn-in testing and EMI and EMC verification
• Appearance and mechanical inspection etc
The RFQ does not need to prescribe every test method if the buyer does not have an engineering team. It can instead identify the required product performance and ask the manufacturer to explain its standard validation process.
However, buyers should avoid vague statements such as "high quality" or "strict testing" as the only quality requirements.
A more useful request is to ask which tests are performed, under what conditions, and whether the relevant records can be provided for the project.
For a broader supplier evaluation, see Charger Factory Audit Guide: How to Evaluate a Reliable OEM Charger Manufacturer.
Provide Order Quantity, Forecast and Delivery Expectations
Commercial information is essential for a meaningful quotation. A supplier cannot accurately estimate production cost or capacity requirements if the RFQ only says "please quote your best price."
At a minimum, buyers should provide:
• Estimated sample quantity and Initial order quantity
• Expected monthly or quarterly demand
• Annual volume forecast, if available
• Target delivery date and Destination country
• Packaging quantity or carton requirements, if known
The first order quantity and long-term forecast should be separated.
For example, a buyer may initially need a small trial order but expect higher volumes after the product enters retail distribution.
This information can influence component purchasing, production scheduling, MOQ discussions and price structure.
Clarify What the Quotation Must Include
An RFQ should not only explain what the buyer wants. It should also tell suppliers how to structure their responses. Otherwise, one manufacturer may quote a standard model, another may include customized packaging, and a third may include additional testing. Comparing their unit prices would not be meaningful.
A buyer can ask each supplier to provide:
1.Product model or proposed configuration
2.Technical specification sheet
3. Unit price at each requested quantity
4. MOQ
5. Sample cost and sample lead time
6. Tooling or development charges, if applicable
7. Packaging and accessory costs
8. Estimated mass-production lead time
9. Available certifications and test documents
10. Payment and delivery terms
11. Quotation validity period
12. Any assumptions, exclusions or deviations from the RFQ
For a customized charger, the quotation should also distinguish between recurring unit costs and one-time development costs.
These may include mold development, engineering work, customized fixtures or certification-related expenses, depending on the project.
A clear cost breakdown helps buyers understand why quotations differ instead of treating the lowest unit price as the only decision factor.
How to Compare Quotations From Different Charger Manufacturers
Once several suppliers have responded, the buyer should compare their quotations against the original RFQ. The first step is to check whether each supplier has quoted the same product configuration.
A lower quotation may be based on:
• A different input-voltage range or A lower output profile
• Component quality
• Exaggerated product specifications(e.g., labeled as 100W, but actually 50W)
• A different housing or material specification
• Different testing or certification assumptions
These differences should be identified before comparing prices.
A supplier that identifies technical gaps and explains the assumptions behind its quotation may provide more useful information than one that immediately offers the lowest price without reviewing the requirements.
For a brand owner or phone charger wholesaler, this is particularly important when the product will be reordered over time. A small difference in the original specification can become a recurring commercial issue if it is not resolved before production.
What Should a Charger Manufacturer Do After Receiving an RFQ?
Professional charger manufacturers should not treat every Request for Quotation (RFQ) merely as a request to "send a price list." The first step should be a technical and commercial assessment.
A sales representative at the charger factory will verify: Are the customer's requirements complete? Is the requested configuration feasible? Are there any conflicts between the various specifications?
• Product and Specifications — Do existing products meet the customer's needs? (This includes output power, connector configurations, protocols, input voltage ranges, and structural requirements.)
• Market and Compliance Assessment — What is the customer's target market? Does the product already possess the necessary compliance or certifications?
• Cost and Procurement — This involves Minimum Order Quantity (MOQ) requirements, driven by factors such as component-level MOQs, the Bill of Materials (BOM), tooling, and other production-related considerations.
• Production — The sales representative will also gather information regarding manufacturing lead times, testing protocols, packaging methods, order scale, and production capacity.
• Quote Preparation — A formal quote is prepared based on the confirmed configuration, with all underlying assumptions or outstanding issues clearly outlined.
For projects requiring extensive customization, the manufacturer’s sales representative will engage in technical and requirements-based discussions before providing a formal quote. This is not a stalling tactic; rather, it ensures that both the buyer and the manufacturer avoid wasting time on product configurations that are commercially or technically unfeasible.
A Practical OEM Charger RFQ Template
The following structure can be used when contacting a USB-C charger manufacturer.
A. Basic Project Information - Company name, Contact person, Target sales markets,Product application, Required product type, Existing model customization or new development;
B. Electrical Requirements - Rated output power, USB port configuration, Required USB-C PD profiles, PPS requirement, AVS requirement, if applicable, USB-A protocol requirements, Multi-port power allocation, AC input voltage and frequency, Plug type;
C. Mechanical and Appearance Requirements - Maximum product dimensions, Housing material, Product color, Surface finish, Logo customization, Plug structure, Cable or accessory requirements, Packaging requirements;
D. Compliance and Quality Requirements - Target countries, Required certification or compliance conditions, Required electrical tests, Thermal and reliability expectations, Required test reports, Labeling and manual requirements;
E. Commercial Requirements - Sample quantity, Initial order quantity, Estimated annual demand, Target price, if available, Sample deadline, Target mass-production date, Delivery destination, Required quotation breakdown;
F. Supplier Response - Please provide, Recommended model or proposed solution, Technical datasheet, Unit price by quantity, MOQ, Sample and production lead time, Tooling or development costs, Available certification documents, Any technical deviations or assumptions;
The buyer does not need to know every engineering detail before sending an RFQ. What matters is providing enough information for the manufacturer to identify the product direction and ask the right follow-up questions.
How ZONSAN Supports OEM and ODM Charger Projects
ZONSAN develops and manufactures USB wall chargers, GaN fast chargers, USB-C PD/PPS chargers, desktop chargers and multi-port charging products for OEM and ODM customers.
For a new project, the RFQ is an important starting point because it connects the buyer's commercial requirements with the manufacturer's engineering and production evaluation. A request may involve an existing charger model with customized branding, or it may require changes to the power configuration, plug type, housing, internal structure or packaging.
The more clearly these requirements are defined, the easier it is to assess feasibility, estimate development work and prepare a quotation that reflects the intended product.
As a charger manufacturer with 17 years of experience and a 6,358㎡ production facility, ZONSAN works with customers on product specifications, engineering development, sample evaluation and manufacturing preparation.
For buyers who are still comparing suppliers, it is worth reviewing the manufacturer's development capability and production process alongside the quotation itself. A low initial price is only useful when the proposed product can meet the agreed requirements and be manufactured consistently.
Final Thoughts
A good OEM charger RFQ is more than a request for unit pricing. It is the document that establishes what the buyer expects the manufacturer to develop, supply and deliver.
When output profiles, input voltage, plug type, target markets, customization, quality expectations and order quantities are clearly defined, manufacturers can prepare more accurate quotations and identify potential engineering issues earlier.
For buyers, this reduces unnecessary sample revisions and makes supplier comparisons more meaningful.
For manufacturers, it provides a clearer basis for engineering review, sourcing, production planning and cost estimation.
If you are sourcing a USB-C PD charger, GaN fast charger or customized wall charger, take the time to prepare the RFQ before requesting prices. A clearer starting specification usually leads to a more efficient development and purchasing process.
FAQ: OEM Charger RFQ
Q1: What is an RFQ in charger manufacturing?
RFQ stands for Request for Quotation. It is a document or inquiry sent by a buyer to a charger manufacturer to describe the required product specifications, quantities, customization, target markets and delivery expectations so the supplier can prepare a quotation.
Q2: What information should I include when requesting a charger quotation?
Include the required output power, USB port configuration, PD/PPS protocols, AC input range, plug type, target market, product dimensions, branding, packaging, order quantity and delivery expectations. If available, attach a reference product or technical specification.
Q3: Can I request a quotation with only a product picture?
Yes, a picture can be a useful starting reference, but it is not enough for an accurate quotation. The buyer should also identify the required wattage, ports, input range, plug type, customization and destination market.
Q4: Why do different charger manufacturers quote different prices for the same wattage?
The products not have the same specifications. Differences can include output profiles, component selection, input range, port power allocation, materials, certification scope, packaging and testing requirements. Buyers should compare equivalent configurations.
Q5: Should I specify PPS and AVS in a 100W charger RFQ?
Yes, if these protocols are required by the target devices or product positioning. Buyers should state the required voltage and current ranges where known rather than assuming that every 100W USB-C charger supports the same profiles.
Q6: Should the RFQ include the destination country?
Yes. The destination market affects input-voltage suitability, plug configuration, labeling and applicable compliance requirements. Providing the intended sales countries helps the manufacturer evaluate the correct product configuration.
Q7: What is the difference between an OEM charger RFQ and an ODM charger RFQ?
An OEM RFQ often starts with buyer-defined product requirements or an existing design that needs manufacturing or customization. An ODM RFQ may allow the manufacturer to propose a product design or platform based on the buyer's market and commercial requirements. The actual division of design responsibility should be agreed by both parties.
Q8: Should I include my target price in an RFQ?
A target price can help the manufacturer understand the commercial direction, but it should not replace technical specifications. If the target price is below the cost of the requested configuration, the manufacturer may suggest alternative components, designs or customization options for discussion.
Q9: How many charger manufacturers should I send an RFQ to?
There is no fixed number. It is more useful to select manufacturers with relevant product and engineering capabilities and send them the same specification. This makes their quotations easier to compare.
Q10: What should I check before approving a charger quotation?
Check the exact model and configuration, output profiles, input range, plug type, certification assumptions, customization scope, MOQ, sample cost, tooling charges, lead time, payment terms and quotation exclusions. Confirm that the supplier has quoted against the same requirements you submitted.
Reviewer: Luke and Jeroen Groen
Second Reviewers: Lucas and Jessica
Final Review Date: [November 10, 2026]